qemu/hw/arm/tosa.c
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   1/* vim:set shiftwidth=4 ts=4 et: */
   2/*
   3 * PXA255 Sharp Zaurus SL-6000 PDA platform
   4 *
   5 * Copyright (c) 2008 Dmitry Baryshkov
   6 *
   7 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
   8 * This code is licensed under the GNU GPL v2.
   9 *
  10 * Contributions after 2012-01-13 are licensed under the terms of the
  11 * GNU GPL, version 2 or (at your option) any later version.
  12 */
  13
  14#include "qemu/osdep.h"
  15#include "qapi/error.h"
  16#include "sysemu/runstate.h"
  17#include "hw/arm/pxa.h"
  18#include "hw/arm/boot.h"
  19#include "hw/arm/sharpsl.h"
  20#include "hw/pcmcia.h"
  21#include "hw/boards.h"
  22#include "hw/display/tc6393xb.h"
  23#include "hw/i2c/i2c.h"
  24#include "hw/irq.h"
  25#include "hw/ssi/ssi.h"
  26#include "hw/sysbus.h"
  27#include "hw/misc/led.h"
  28#include "exec/address-spaces.h"
  29#include "qom/object.h"
  30
  31#define TOSA_RAM 0x04000000
  32#define TOSA_ROM 0x00800000
  33
  34#define TOSA_GPIO_USB_IN                (5)
  35#define TOSA_GPIO_nSD_DETECT            (9)
  36#define TOSA_GPIO_ON_RESET              (19)
  37#define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  38#define TOSA_GPIO_CF_CD                 (13)
  39#define TOSA_GPIO_TC6393XB_INT          (15)
  40#define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  41
  42#define TOSA_SCOOP_GPIO_BASE            1
  43#define TOSA_GPIO_IR_POWERDWN           (TOSA_SCOOP_GPIO_BASE + 2)
  44#define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  45#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  46
  47#define TOSA_SCOOP_JC_GPIO_BASE         1
  48#define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  49#define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  50#define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  51#define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  52#define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  53
  54#define DAC_BASE 0x4e
  55#define DAC_CH1 0
  56#define DAC_CH2 1
  57
  58static void tosa_microdrive_attach(PXA2xxState *cpu)
  59{
  60    PCMCIACardState *md;
  61    DriveInfo *dinfo;
  62
  63    dinfo = drive_get(IF_IDE, 0, 0);
  64    if (!dinfo || dinfo->media_cd)
  65        return;
  66    md = dscm1xxxx_init(dinfo);
  67    pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  68}
  69
  70/*
  71 * Encapsulation of some GPIO line behaviour for the Tosa board
  72 *
  73 * QEMU interface:
  74 *  + named GPIO inputs "leds[0..3]": assert to light LEDs
  75 *  + named GPIO input "reset": when asserted, resets the system
  76 */
  77
  78#define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio"
  79OBJECT_DECLARE_SIMPLE_TYPE(TosaMiscGPIOState, TOSA_MISC_GPIO)
  80
  81struct TosaMiscGPIOState {
  82    SysBusDevice parent_obj;
  83};
  84
  85static void tosa_reset(void *opaque, int line, int level)
  86{
  87    if (level) {
  88        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  89    }
  90}
  91
  92static void tosa_misc_gpio_init(Object *obj)
  93{
  94    DeviceState *dev = DEVICE(obj);
  95
  96    qdev_init_gpio_in_named(dev, tosa_reset, "reset", 1);
  97}
  98
  99static void tosa_gpio_setup(PXA2xxState *cpu,
 100                DeviceState *scp0,
 101                DeviceState *scp1,
 102                TC6393xbState *tmio)
 103{
 104    DeviceState *misc_gpio;
 105    LEDState *led[4];
 106
 107    misc_gpio = sysbus_create_simple(TYPE_TOSA_MISC_GPIO, -1, NULL);
 108
 109    /* MMC/SD host */
 110    pxa2xx_mmci_handlers(cpu->mmc,
 111                    qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
 112                    qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 113
 114    /* Handle reset */
 115    qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET,
 116                          qdev_get_gpio_in_named(misc_gpio, "reset", 0));
 117
 118    /* PCMCIA signals: card's IRQ and Card-Detect */
 119    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 120                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 121                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 122
 123    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 124                        qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 125                        NULL);
 126
 127    led[0] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 128                               LED_COLOR_BLUE, "bluetooth");
 129    led[1] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 130                               LED_COLOR_GREEN, "note");
 131    led[2] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 132                               LED_COLOR_AMBER, "charger-error");
 133    led[3] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH,
 134                               LED_COLOR_GREEN, "wlan");
 135
 136    qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED,
 137                          qdev_get_gpio_in(DEVICE(led[0]), 0));
 138    qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED,
 139                          qdev_get_gpio_in(DEVICE(led[1]), 0));
 140    qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED,
 141                          qdev_get_gpio_in(DEVICE(led[2]), 0));
 142    qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED,
 143                          qdev_get_gpio_in(DEVICE(led[3]), 0));
 144
 145    qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 146
 147    /* UDC Vbus */
 148    qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 149}
 150
 151static uint32_t tosa_ssp_tansfer(SSIPeripheral *dev, uint32_t value)
 152{
 153    fprintf(stderr, "TG: %u %02x\n", value >> 5, value & 0x1f);
 154    return 0;
 155}
 156
 157static void tosa_ssp_realize(SSIPeripheral *dev, Error **errp)
 158{
 159    /* Nothing to do.  */
 160}
 161
 162#define TYPE_TOSA_DAC "tosa_dac"
 163OBJECT_DECLARE_SIMPLE_TYPE(TosaDACState, TOSA_DAC)
 164
 165struct TosaDACState {
 166    I2CSlave parent_obj;
 167
 168    int len;
 169    char buf[3];
 170};
 171
 172static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 173{
 174    TosaDACState *s = TOSA_DAC(i2c);
 175
 176    s->buf[s->len] = data;
 177    if (s->len ++ > 2) {
 178#ifdef VERBOSE
 179        fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len);
 180#endif
 181        return 1;
 182    }
 183
 184    if (s->len == 2) {
 185        fprintf(stderr, "dac: channel %d value 0x%02x\n",
 186                s->buf[0], s->buf[1]);
 187    }
 188
 189    return 0;
 190}
 191
 192static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 193{
 194    TosaDACState *s = TOSA_DAC(i2c);
 195
 196    s->len = 0;
 197    switch (event) {
 198    case I2C_START_SEND:
 199        break;
 200    case I2C_START_RECV:
 201        printf("%s: recv not supported!!!\n", __func__);
 202        break;
 203    case I2C_FINISH:
 204#ifdef VERBOSE
 205        if (s->len < 2)
 206            printf("%s: message too short (%i bytes)\n", __func__, s->len);
 207        if (s->len > 2)
 208            printf("%s: message too long\n", __func__);
 209#endif
 210        break;
 211    default:
 212        break;
 213    }
 214
 215    return 0;
 216}
 217
 218static uint8_t tosa_dac_recv(I2CSlave *s)
 219{
 220    printf("%s: recv not supported!!!\n", __func__);
 221    return 0xff;
 222}
 223
 224static void tosa_tg_init(PXA2xxState *cpu)
 225{
 226    I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 227    i2c_slave_create_simple(bus, TYPE_TOSA_DAC, DAC_BASE);
 228    ssi_create_peripheral(cpu->ssp[1], "tosa-ssp");
 229}
 230
 231
 232static struct arm_boot_info tosa_binfo = {
 233    .loader_start = PXA2XX_SDRAM_BASE,
 234    .ram_size = 0x04000000,
 235};
 236
 237static void tosa_init(MachineState *machine)
 238{
 239    MemoryRegion *address_space_mem = get_system_memory();
 240    MemoryRegion *rom = g_new(MemoryRegion, 1);
 241    PXA2xxState *mpu;
 242    TC6393xbState *tmio;
 243    DeviceState *scp0, *scp1;
 244
 245    mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 246
 247    memory_region_init_rom(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 248    memory_region_add_subregion(address_space_mem, 0, rom);
 249
 250    tmio = tc6393xb_init(address_space_mem, 0x10000000,
 251            qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 252
 253    scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 254    scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 255
 256    tosa_gpio_setup(mpu, scp0, scp1, tmio);
 257
 258    tosa_microdrive_attach(mpu);
 259
 260    tosa_tg_init(mpu);
 261
 262    tosa_binfo.board_id = 0x208;
 263    arm_load_kernel(mpu->cpu, machine, &tosa_binfo);
 264    sl_bootparam_write(SL_PXA_PARAM_BASE);
 265}
 266
 267static void tosapda_machine_init(MachineClass *mc)
 268{
 269    mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 270    mc->init = tosa_init;
 271    mc->block_default_type = IF_IDE;
 272    mc->ignore_memory_transaction_failures = true;
 273}
 274
 275DEFINE_MACHINE("tosa", tosapda_machine_init)
 276
 277static void tosa_dac_class_init(ObjectClass *klass, void *data)
 278{
 279    I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 280
 281    k->event = tosa_dac_event;
 282    k->recv = tosa_dac_recv;
 283    k->send = tosa_dac_send;
 284}
 285
 286static const TypeInfo tosa_dac_info = {
 287    .name          = TYPE_TOSA_DAC,
 288    .parent        = TYPE_I2C_SLAVE,
 289    .instance_size = sizeof(TosaDACState),
 290    .class_init    = tosa_dac_class_init,
 291};
 292
 293static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 294{
 295    SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass);
 296
 297    k->realize = tosa_ssp_realize;
 298    k->transfer = tosa_ssp_tansfer;
 299}
 300
 301static const TypeInfo tosa_ssp_info = {
 302    .name          = "tosa-ssp",
 303    .parent        = TYPE_SSI_PERIPHERAL,
 304    .instance_size = sizeof(SSIPeripheral),
 305    .class_init    = tosa_ssp_class_init,
 306};
 307
 308static const TypeInfo tosa_misc_gpio_info = {
 309    .name          = TYPE_TOSA_MISC_GPIO,
 310    .parent        = TYPE_SYS_BUS_DEVICE,
 311    .instance_size = sizeof(TosaMiscGPIOState),
 312    .instance_init = tosa_misc_gpio_init,
 313    /*
 314     * No class init required: device has no internal state so does not
 315     * need to set up reset or vmstate, and has no realize method.
 316     */
 317};
 318
 319static void tosa_register_types(void)
 320{
 321    type_register_static(&tosa_dac_info);
 322    type_register_static(&tosa_ssp_info);
 323    type_register_static(&tosa_misc_gpio_info);
 324}
 325
 326type_init(tosa_register_types)
 327